Results 31 to 40 of about 1,031 (124)

The jump phenomenon associated with the dynamics of the duffing equation

Physics Open, 2020
The mathematical nature of the jump phenomenon associated with the damped, harmonically forced Duffing equation is investigated, as regards the amplitude of the harmonic response of the system.
M.P. Markakis
doaj   +1 more source

Fluid‐Retention Side‐Effects of the Chemotherapy‐Supportive Treatment Interleukin‐11: Mathematical Modelling of Putative Underlying Mechanisms

Computational and Mathematical Methods in Medicine, Volume 7, Issue 2-3, Page 71-84, 2006., 2006
Interleukin‐11 (IL‐11) is a pleiotropic thrombopoietic cytokine and immune modulator, clinically approved for alleviation of chemotherapy‐induced thrombocytopenia in non‐myeloid malignancies. IL‐11 therapy exerts fluid accumulation‐associated adverse effects, complicating its administration and limiting its use.
Yuri Kheifetz, Moran Elishmereni, Smadar Horowitz, Zvia Agur   +3 more
wiley   +1 more source

A study on the transmission dynamics of COVID-19 considering the impact of asymptomatic infection

Journal of Biological Dynamics, 2023
The COVID-19 epidemic has been spreading around the world for nearly three years, and asymptomatic infections have exacerbated the spread of the epidemic.
Chuanqing Xu, Zonghao Zhang, Xiaotong Huang, Kedeng Cheng, Songbai Guo, Xiaojing Wang, Maoxing Liu, Xiaoling Liu   +7 more
doaj   +1 more source

Effect of randomly fluctuating environment on autotroph‐herbivore model system

International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 68, Page 3703-3716, 2004., 2004
First we deal with a brief introduction of the autotroph‐herbivore model system along with deterministic analysis of local stability, bifurcation behavior, and persistence of the populations. The second part consists of the stochastic formulation of the model system to incorporate the effect of environmental fluctuation and then analysis of ...
Tapan Saha, Malay Bandyopadhyay
wiley   +1 more source

On infinite system of Caputo fractional differential inclusions with boundary conditions for convex-compact multivalued mappings

Alexandria Engineering Journal, 2020
Y. Xu (2016) investigated existence results of Caputo fractional differential equations with integral and anti-periodic boundary conditions of fractional order α∈(1,2).
Mahnaz Khanehgir, Reza Allahyari, Mohammad Mursaleen, Hojjatollah Amiri Kayvanloo   +3 more
doaj   +1 more source

Existence and nonexistence of entire solutions to the logistic differential equation

Abstract and Applied Analysis, Volume 2003, Issue 17, Page 995-1003, 2003., 2003
We consider the one‐dimensional logistic problem (rαA(|u′|)u′) ′=rαp(r)f(u) on (0, ∞), u(0) > 0, u′(0) = 0, where α is a positive constant and A is a continuous function such that the mapping tA(|t|) is increasing on (0, ∞). The framework includes the case where f and p are continuous and positive on (0, ∞), f(0) = 0, and f is nondecreasing.
Marius Ghergu, Vicenţiu Rădulescu
wiley   +1 more source

Exact solutions for the ion sound Langmuir wave model by using two novel analytical methods

Results in Physics, 2020
In the present paper, the system of equations for the ion sound and Langmuir waves (SEISLWs) is considered to obtain the new solitary wave solutions of the non-linear evolution equations. Here, we used the relatively two new analytical methods to achieve
A. Tripathy, S. Sahoo
doaj   +1 more source

Effect of a ceruminolytic ear cleaner on clinical, microbiological and ear canal microbiome evolution in canine erythemato‐ceruminous otitis externa associated with proliferation of Malassezia yeasts

Veterinary Dermatology, Volume 36, Issue 5, Page 668-678, October 2025.
Background – Erythemato‐ceruminous otitis externa (ECOE) is commonly associated with Malassezia spp. and microbial imbalance. Hypothesis/Objective – To assess the clinical performance of an ear cleaner in dogs suffering from ECOE associated with Malassezia spp. overgrowth and to measure its impact on the microbiota. Conclusions and Clinical Relevance –
Amaury Briand, Emmanuel Bensignor, Hélène Dropsy, Odile Crosaz, Louis Humeau, Justine Cheval, Vanessa Demontant, Melissa N. Debi, Oscar Fantini, Hélène Dal, Jacques Guillot, Noelle Cochet Faivre   +11 more
wiley   +1 more source

The generalized Turner‐Bradley‐Kirk‐Pruitt equation

International Journal of Mathematics and Mathematical Sciences, Volume 32, Issue 2, Page 73-80, 2002., 2002
Several recent results pertaining to nonlinear equations of ecology are applied to a generalization of the Turner‐Bradley‐Kirk‐Pruitt (TBKP) equation, which illustrates a variety of interesting possibilities as regards persistence and extinction. The chief novelty consists in exploiting the value set of the equation, that is, the set of values taken on
Ray Redheffer
wiley   +1 more source

An Analysis of Controllability Criteria for Higher‐Order Caputo Fractional Differential Systems With State and Control Delays

International Journal of Differential Equations, Volume 2025, Issue 1, 2025.
The present study investigates the controllability problems for higher‐order semilinear fractional differential systems (HOSLFDSs) with state and control delays in the context of the Caputo fractional derivative. Exploiting the invertibility of the Gramian matrix of fractional order, the necessary and sufficient conditions for the controllability ...
Anjapuli Panneer Selvam, Venkatesan Govindaraj, Raaid Alubady, Sina Etemad, Deepali   +4 more
wiley   +1 more source